Hello,
With the help of this article you will be able to access/browse .json files on the browser. You need to add this code in your domain's Web.config file,
=======================>>>
<system.webServer>
<staticContent>
<mimeMap fileExtension=".json" mimeType="application/json" />
</staticContent>
</system.webServer>
=======================>>>
To set this for the entire server:
Open the properties for the server in IIS Manager and click MIME Types
Click "New". Enter "JSON" for the extension and "application/json" for the MIME type.
Thank you,